2.全体的な印象で識別する
見た目の比較
Choose No.1 if dorsal seta Z5 is as long as width of dorsal shield, No.2 if Z5 is longer than the width of dorsal shield, No.3 if almost dorsal setae are long, No.4 if almost dorsal setae are short, No.5 if several dorsal setae are thick, or No.6 if characteristic features are absent.